मराठी

Solve the following equation by factorisation method: 9x2 − 64 = 0 - Mathematics

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प्रश्न

Solve the following equation by factorisation method:

9x2 − 64 = 0

बेरीज
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उत्तर

Given:

9x2 − 64 = 0

a2 − b2 = (a − b) (a + b)

9x2 − 64

= (3x)2 − 82

(3x − 8) (3x + 8) = 0

3x − 8 = 0

⇒ x = `8/3`

3x + 8 = 0

⇒ x = −`8/3`

`x = 8/3 or x = -8/3`

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पाठ 5: Quadratic equations - Exercise 5B [पृष्ठ ६४]

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नूतन Mathematics [English] Class 10 ICSE
पाठ 5 Quadratic equations
Exercise 5B | Q 2. | पृष्ठ ६४
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